Use the following information to answer the next question.
in ultrasound technology, sound waves with a frequency of 3.02 x 10° hz
and a wavelength of 5.13 x 10-4 m pass through the body. reflected waves
are analyzed by a computer to produce an image.
the speed of the sound waves passing through the body is
a.
b.
c.
d.
1.70 x 10-10 m/s
1.55 x 103 m/s
3.00 x 108 m/s
5.89 x 10 m/s

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere